Acquisition of preventive maintenance services for chlorine gas dosing equipment installed at WTP Corgas, WTP Penha Garcia, WTP Cabril, WTP Rio Fundeiro, EE Mendacha and WTP Sta Luzia, under the terms better defined in the tender specifications and respective annexes.

The services to be provided consist essentially of preventive maintenance interventions, covering the existing equipment, better indicated in the Annexes to the Tender Documents, namely in Annex II, and include the interventions, consisting of the following works, as better indicated in Annex I to the Tender Documents:

a) Annual maintenance with supply, assembly and replacement of wear parts recommended by the manufacturer (parts included in this provision of services, for the equipment identified in Annex II to the specifications);

b) Inspection and verification every six months of all the equipment that makes up the Chlorine Gas Dosing System, including the inventory, assembly and application of replacement parts, which may be identified as necessary for the proper functioning of the equipment (the supply of these parts is not included in this provision of services, and their supply is the responsibility of AdVT after identification and request made by the service provider to AdVT);

Acquisition of preventive maintenance services for chlorine gas dosing equipment installed at WTP Corgas, WTP Penha Garcia, WTP Cabril, WTP Rio Fundeiro, EE Mendacha and WTP Sta Luzia, under the terms better defined in the tender specifications and respective annexes.